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LED Night-Light Cube 



Make] Projects 



LED Night-Light Cube 

Written By: Amanda Ervin 



TOOLS: 




PARTS: 


Pliers M) 




Bristol board (1) 


Razor blade (1) 


• 


Taped) 


Ruler (1) 


• 


Felt (1) 


Scissors m 


• 


Wirem 


X-Acto Compass Cutter (1) 


• 


Embroidery needle (1) 
and floss 




• 


LED(1) 




• 


Coin cell batterv (2) 



SUMMARY 

The most interesting part of this project was coming up with ways to create a switch out of 
paper. 



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LED Night-Light Cube 



Step 1 — LED Night-Light Cube 




• Cut a cube pattern out of bristol 
board. This pattern uses 3-inch by 
3-inch squares. You could make 
them larger or smaller. Once it's 
cut out, use a ruler to make a 
crease at each 3-inch mark. 



Step 2 




• On a separate piece of bristol 
board, cut a 2.5 x 2.5 inch square. 
Then cut a smaller square in the 
bottom left corner. This opening 
should be just large enough to fit 
the coin cell batteries (stacked). 



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LED Night-Light Cube 
Step 3 




• Using an X-Acto compass, cut a 
small circle, roughly 1.5 inches in 
diameter. 



Step 4 




• Using a pin, poke three holes in the 
circle. Place one hole in the center 
and two near the outer edge. Run a 
piece of uninsulated wire between 
the two outer holes, so that a 
straight line of copper wire is 
formed on the back of the circle. 
Twist the wires together on the 
front of the circle (perhaps twist 
them into a bow or flower shape). 
This will become a switch to turn 
the light on and off. 



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LED Night-Light Cube 



Step 5 




i In the image on the left, you can see the circle is in the corner opposite the batteries. 
Place the circle, and mark where the copper line you made in the last step is. On the paper 
behind the circle, poke four holes underneath the copper line. Here you will run two more 
copper lines, perpendicular to the copper line on the back of the circle. The idea here is 
that when the circle rotates, the copper wire on the circle will cross over the two copper 
wires underneath, creating a closed connection between the two of them. 

• I've taped two 3v coin-cell batteries together (in series), and attached the positive side of 
the battery to the positive leg of the LED, the negative leg of the LED to one side of the 
circle switch, and the other side of the switch to the negative connection on the battery. 



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LED Night-Light Cube 



Step 6 




• Choose one square from your cube 
to be the base of your light. This is 
where you will attach your circuit. 
Measure .5" in from each edge, and 
cut out the inner square. 

• Tape the circuit in place over the 
empty square, so that the circle is 
on what will be the outside of your 
cube, and the LED is on what will 
be the inside of your cube. 



Step 7 




• Grab your felt and cut out decorative shapes. Then glue them in place. 



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LED Night-Light Cube 
Step 8 




• Using embroidery thread, sew the 
edges of your cube together. As 
you can see in the image, two of 
the edges of the top face of the 
cube have been completed, while 
the other two edges have not. 



Step 9 




• You're done! Turn it on and scare all the monsters away! 

This document was last generated on 2012-11-03 01 :40:38 AM. 



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